Origin
The causal agent, Ceratocystis fagacearum, is found only within the borders of the United States, but the origin of the pathogen is not known. Recent evidence suggests that the pathogen was introduced into the United States, possibly from Central or South America, or Mexico. The disease currently affects much of the eastern and central US, from Virginia to Minnesota to Arkansas, with pockets of infection as far southwestward as Austin, Texas. One area of infection has recently been discovered as far northeastward as Glenville, New York. It is particularly common in the .
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Famous quotes containing the word origin:
“In the woods in a winter afternoon one will see as readily the origin of the stained glass window, with which Gothic cathedrals are adorned, in the colors of the western sky seen through the bare and crossing branches of the forest.”
—Ralph Waldo Emerson (1803–1882)
“Art is good when it springs from necessity. This kind of origin is the guarantee of its value; there is no other.”
—Neal Cassady (1926–1968)
“Someone had literally run to earth
In an old cellar hole in a byroad
The origin of all the family there.
Thence they were sprung, so numerous a tribe
That now not all the houses left in town
Made shift to shelter them without the help
Of here and there a tent in grove and orchard.”
—Robert Frost (1874–1963)